Anti-blocking discharging device

Abstract

The utility model provides an anti-blocking blanking device which comprises a hopper, a blanking device and a control device, the control device comprises a stepping pull rod and a baffle, the stepping pull rod is fixedly connected with the baffle, the blanking device comprises a venturi tube, a blanking tube and a storage tube, the storage tube is fixedly connected with the blanking tube, and the venturi tube is fixedly connected with the blanking tube. The control device controls the baffle to be in sliding connection with the discharging pipe, the structure is simple, safety and reliability are achieved, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to an anti-blocking feeding device. Background Art

[0002] For aquaculture, its feeding method is crucial. As the scale of aquaculture increases, more and more aquaculture tends to be factory-based. The factory-based aquaculture model can effectively reduce the breeding area and resist poor breeding environment. In the process of factory-based aquaculture, automatic feeding system is mainly used for feeding, among which pipeline pneumatic conveying of pellet feed is a key technology. However, due to the light weight, low density and large volume of some pellet feeds, unreasonable conveying equipment process parameters often lead to blockage of pipelines or feeders, resulting in inaccurate feeding amount. For places such as small nursery ponds that require precise feeding, if the feeding is excessive, the ammonia nitrogen and pH value in the water may be too high; conversely, if the feeding is insufficient, it may cause malnutrition of fish and reduce economic benefits.

[0003] For example, the patent document with patent application number CN 202310773071.4 and announcement date 2023.06.27 discloses an automatic jet feeding device and feeding method. This device includes: a host computer, a control module, a weighing platform, a hopper, a spray pipe and a spray mechanism; wherein the control module is electrically connected to the host computer; the weighing platform is electrically connected to the host computer; the hopper is mounted on the weighing platform; the body of the spray pipe is connected to the discharge port of the hopper; the spray mechanism is electrically connected to the control module, and is used to spray the material in the spray pipe. The weighing platform can obtain the weight of the material in the hopper, with accurate weighing accuracy, precise material control, controllable error, and low cost; the use of airflow jet feeding overcomes many defects of the existing technical solutions, and the spraying is controllable.

[0004] In the automatic jet feeding device described in the above document, the outlet of the hopper is vertically connected to the jet pipe, so that the discharge material is prone to flow back to the hopper at the connection point, and when the discharge material flows back severely, it is easy to cause blockage, thereby affecting the feeding efficiency. At the same time, the hopper cannot be replaced after it is installed on the jet pipe. It must be replaced with a hopper of a size similar to the jet pipe orifice, which makes replacement inconvenient. Summary of the invention

[0005] The utility model provides an anti-blocking feeding device with simple structure and good feeding reliability.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a blocking-proof feeding device, comprising a hopper, a feeding device and a control device, the control device comprising a stepper motor and a baffle, the output end of the stepper motor is fixedly connected to the baffle, the stepper motor controls the baffle to move and connect the hopper and the feeding device, the hopper is arranged above the feeding device, and the baffle is arranged between the hopper and the feeding device, the feeding device comprises a venturi tube, a feeding pipe and a storage pipe, the storage pipe and the feeding pipe are fixedly connected, and the outlet of the feeding pipe is tilted and fixedly connected to the throat of the venturi tube.

[0007] The above arrangement controls the movement of the baffle by controlling the stepper motor so that the baffle connects or closes the passage between the hopper and the discharge device, thereby realizing the control over the inflow and outflow of materials. The baffle can be closed after the material is input into the hopper to prevent a large amount of airflow from flowing back and affecting the discharge. The storage pipe plays the role of temporarily storing materials. When the Venturi tube is connected to the blowing device, it is used to provide a stable airflow to help the smooth transportation of materials. The discharge outlet and the Venturi tube are inclined to reduce the airflow entering the discharge outlet. At the same time, the material can also be inclined to enter the Venturi tube, thereby preventing the gas entering the Venturi tube from being vertically arranged with the discharge port, causing the air inlet to strongly impact the material at the discharge port at the connection point, thereby causing the material to be blocked at the discharge port. The structure is simple and the reliability is good.

[0008] Furthermore, a platform is provided on the top of the material storage tube, the platform is provided with a through hole corresponding to the diameter of the material storage tube, a stepping motor is arranged on the platform, and a baffle is provided to block the through hole.

[0009] The above arrangement, by arranging a stepper motor above the material storage tube, can ensure that the baffle plate maintains a stable position during use and avoids displacement due to vibration or external force.

[0010] Furthermore, a receiving groove for accommodating a baffle is provided in the platform, a limiting plate is provided at one end of the baffle, the limiting plate is connected to the output end of the stepper motor, the baffle is slidably arranged in the receiving groove and blocks the through hole, and the baffle is blocked on the notch of the receiving groove.

[0011] The above setting, through the setting of the limit plate, enables the baffle to seal the tube perforation setting when it moves to the limiting plate to block the accommodating groove. The flow of materials can be controlled by sliding the baffle in the groove, thereby preventing the materials from sliding or popping out randomly in the non-unloading state, thereby ensuring the continuous and stable supply of materials.

[0012] Furthermore, the stepper motor is horizontally arranged on the platform, one side of the stepper motor is connected to one side of the platform, and the other side of the stepper motor is connected to the limit plate.

[0013] In the above setting, the stepper motor directly controls the baffle. Compared with the traditional hydraulic or pneumatic system, the number of mechanical components in the intermediate transmission link can be reduced. The stepper motor controls the opening and closing of the baffle with high precision and fast response, which greatly shortens the interval time between actions.

[0014] Furthermore, the outlet at the bottom of the hopper, the inlet at the top of the storage pipe and the through hole of the platform have corresponding diameters, and the outlet at the bottom of the hopper, the inlet at the top of the storage pipe and the through hole of the platform are on the same straight line.

[0015] The above setting, the consistent diameter of the bottom of the hopper, the top of the storage pipe and the platform through-hole ensures that the material will not be left over or blocked due to the sudden change of the pipe cross section during the transportation process. The feed does not need to overcome the additional resistance caused by the change of the pipe shape during the transportation process, thereby reducing the energy loss during the transportation process and improving the overall transportation efficiency.

[0016] Furthermore, the diameter of the feed pipe where it is connected to the Venturi pipe is smaller than the diameters of the two sides of the Venturi pipe.

[0017] In the above arrangement, when the caliber of the Venturi tube connected to the feed pipe is smaller than the calibers on both sides of the Venturi tube, the smaller caliber can increase the pressure there, thereby promoting faster passage of materials, reducing the possibility of blockage, and allowing the fluid to enter the Venturi tube in a more stable state, thereby improving the conveying efficiency.

[0018] Furthermore, the lower end of the feed pipe is inclined downward toward the discharge port of the venturi tube.

[0019] With the above arrangement, the lower end of the discharge pipe is inclined toward the inlet of the venturi tube, so that the material entering the venturi tube can flow out along the airflow of the blowing device. On the one hand, it can prevent the material from being blown into the storage pipe, and on the other hand, it can enable the material to be better discharged from the outlet of the venturi tube, avoiding blockage and improving the discharge efficiency.

[0020] Furthermore, the feed pipe comprises an upper part and a lower part, the upper part and the lower part are inclined, and the axis of the upper part of the feed pipe is perpendicular to the axis of the venturi tube.

[0021] The above arrangement, by arranging the upper part of the discharge pipe perpendicularly to the axis of the Venturi tube, allows the material in the storage tube to enter the discharge pipe under free falling movement, and then by arranging the upper part of the discharge pipe and the lower part of the discharge pipe at an angle, it can reduce the airflow in the Venturi tube from entering the storage tube, thereby further preventing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of an anti-blocking feeding device of the utility model.

[0023] Figure 2 This is an exploded view of an anti-blocking feeding device of the utility model.

[0024] Figure 3 This is a front view of a Venturi tube in an anti-blocking feeding device of the utility model.

[0025] Figure 4 It is a side view of a Venturi tube in an anti-blocking feeding device of the utility model.

[0026] Figure 5 for Figure 3 Section view along AA direction.

[0027] Figure 6 It is a cross-sectional view of another embodiment of the platform in the utility model.

[0028] Figure 7 It is a top view of another embodiment of the platform in the utility model.

[0029] Figure 8 It is a structural diagram of another embodiment of the hopper in the utility model.

[0030] Description of Figure Numbers:

[0031] 1-hopper; 11-convex strip; 2-control device; 21-stepping motor; 22-baffle; 221-limiting plate; 3-storage pipe; 31-platform; 310-through hole; 311-installation step; 312-connecting groove; 313-accommodating groove; 32-boss; 4-discharge pipe; 41-upper part of discharge pipe; 42 lower part of discharge pipe; 5-Venturi tube. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Example 1.

[0034] like Figure 1-5As shown, an anti-blocking feeding device includes a hopper 1, a feeding device and a control device 2, wherein the control device 2 includes a stepper motor 21 and a baffle 22, wherein the output end of the stepper motor 21 is fixedly connected to the baffle 22, and the feeding device includes a venturi tube 5, a feeding tube 4 and a storage tube 3, wherein the storage tube 3 and the feeding tube 4 are fixedly connected, and the outlet of the feeding tube 4 is obliquely connected to the throat of the venturi tube 5, and the stepper motor 21 controls the baffle 4 to move and connect the hopper 1 and the feeding device. By precisely controlling the movement of the stepper motor 21, the movement of the baffle 22 is controlled, and the precise control of the material in and out is achieved. The baffle 22 is used to guide and block the flow of the material. After the material enters the feeding device, the baffle 22 is controlled to close the connecting passage between the material port 1 and the feeding device, thereby preventing the material from flowing back during the blowing process. The storage tube 3 plays the role of temporarily storing the material, and the venturi tube 5 is used to provide a stable airflow to help the smooth transportation of the material.

[0035] like Figure 2 As shown, a platform 31 is provided on the top of the material storage tube 3, and a through hole 310 with the same diameter as the material storage tube 3 is provided on the platform 31. Bosses 32 are provided upward on the three side edges of the platform 31. A stepper motor 21 is provided on the platform 3. The baffle 3 blocks the through hole 310. A receiving groove 313 for accommodating the baffle 22 is provided in the platform 3. A limit plate 221 is provided at one end of the baffle 22. The limit plate 221 is connected to the output end of the stepper motor 21. The baffle 22 is slidably arranged in the receiving groove 313 and blocks the through hole 310. The baffle 22 blocks the groove of the receiving groove 313. The baffle 22 is guided by the guide rails to ensure the reliability of sliding. Through the fit between the boss 32 and the limit plate 221, the use of the limit plate 221 can effectively prevent excessive movement due to improper operation, and can ensure that the baffle 4 maintains a stable position during use to avoid displacement due to vibration or external force.

[0036] A platform 31 is provided on the top of the storage pipe 3. In the present embodiment, the top of the storage pipe 3 is integrally arranged with the platform 31, and the hopper 1 is fixedly connected to the platform 3 by welding. The platform 31 is provided with a through hole 310 having the same diameter as the storage pipe 3. The flow of the material can be controlled by sliding the baffle 22 in the groove to prevent the material from sliding or popping out randomly in the non-unloading state, thereby ensuring a continuous and stable supply of the material.

[0037] The stepper motor 21 is horizontally arranged on the platform 31, one side of the stepper motor 21 is connected to the platform 31, and the other side of the stepper motor 21 is connected to the baffle 22. The stepper motor 21 directly controls the baffle 22. Compared with the traditional hydraulic or pneumatic system, the number of mechanical components in the intermediate transmission link can be reduced. The stepper motor 21 controls the opening and closing of the baffle with high precision and fast response, which greatly shortens the interval time between actions.

[0038] like Figure 3 and Figure 4 As shown, the calibers of the bottom outlet of the hopper 1, the top inlet of the storage pipe 3 and the platform through hole 310 correspond to each other, and the axes of the bottom outlet of the hopper 1, the top inlet of the storage pipe 3 and the platform through hole 310 are on the same straight line. The caliber of the down pipe 4 where it connects to the venturi tube 5 is smaller than those on both sides of the venturi tube 5, which can effectively avoid the accumulation of materials at the connection. The smaller caliber can promote faster passage of materials, reduce the possibility of blockage, and make the fluid enter the venturi tube 5 in a more stable state, so that the speed of the material increases after entering the venturi tube 5, thereby improving the conveying efficiency.

[0039] like Figure 4 As shown, the feed pipe 4 includes an upper feed pipe portion 41 and a lower feed pipe portion 42, the upper feed pipe portion 41 and the lower feed pipe portion 42 are arranged obliquely, and the axis of the upper feed pipe portion 41 is arranged perpendicularly to the axis of the venturi tube 5, the lower feed pipe portion 42 is inclined downward toward the discharge port of the venturi tube 5, the bottom outlet of the hopper 1, the inlet at the top of the storage tube 3 and the platform through hole 310 have corresponding diameters, the bottom outlet of the hopper 1, the inlet at the top of the storage tube 3 and the axis of the platform through hole 310 are in the same straight line, and the lower feed pipe portion 42 is inclined downward toward the discharge port of the venturi tube 5, and the bottom outlet of the hopper 1, the inlet at the top of the storage tube 3 and the platform through hole 310 have corresponding diameters, and the bottom outlet of the hopper 1, the inlet at the top of the storage tube 3 and the axis of the platform through hole 310 are in the same straight line. Part 42 forms an angle B with the venturi tube 5, wherein angle B ranges from 125° to 145°, and the upper part 41 of the discharge pipe forms an angle C with the lower part 42 of the discharge pipe, wherein angle C ranges from 125° to 145°. In this embodiment, angle B is 126°, and angle C is 144°. The lower part 42 of the discharge pipe is tilted downward at the throat of the venturi tube, which helps the material to flow more smoothly under the action of gravity, especially when the material enters the narrow discharge pipe from a wider hopper, it can effectively guide the material to avoid blockage.

[0040] The working principle of the utility model is as follows: when the stepper motor 21 drives the baffle 22 to open, the feed falls into the discharge pipe 4 through the hopper 1 and the storage pipe 3. At this time, the stepper motor 21 drives the baffle 22 to close, and blows air at the entrance of the venturi tube 5. Under the action of the gas, the feed in the discharge pipe 4 is driven to be output from the venturi tube 5. According to the Bernoulli principle, the cross-sectional area of ​​the pipeline is reduced, while the flow rate remains unchanged, resulting in an increase in the flow rate, completing the quantitative pneumatic conveying of the feed. At the same time, the inclined discharge pipe 4 can prevent the material from flowing back into the storage pipe 3.

[0041] Example 2.

[0042] like Figure 1 , 6 -8, the difference between this embodiment and embodiment 1 is only that: the hopper 1 and the platform 3 are detachable and installable, the inner diameter of the lower end of the hopper 1 is matched with the inner diameter of the through hole 310 and the inner diameter of the upper part of the feeder 4, and a mounting step 311 is provided on the platform 3, and the mounting step 311 is arranged along the edge of the through hole 310. The lower end of the hopper 1 is arranged on the mounting step 311, and the mounting step 311 is provided with a connecting groove 312 arranged along the thickness direction of the platform 3, and the hopper 1 is provided with a convex strip 11 corresponding to the connecting groove 312, and the mounting step 311 is provided with a sliding groove connected to the connecting groove (not shown in the figure). When installing, first insert the convex strip 11 of the hopper 1 into the connecting groove 312 and then rotate the hopper 1 so that the convex strip 11 slides in the sliding groove so that the convex strip 11 does not correspond to the connecting groove 312, thereby realizing installation. When disassembling, it is only necessary to make the convex strip 11 of the hopper 1 correspond to the connecting groove 312 to realize sliding out.

Claims

1. An anti-blocking feeding device, comprising a hopper, a feeding device and a control device, characterized in that: The control device includes a stepper motor and a baffle, the output end of the stepper motor is fixedly connected to the baffle, the stepper motor controls the baffle to move and connect the hopper and the unloading device, the hopper is arranged above the unloading device, and the baffle is arranged between the hopper and the unloading device, the unloading device includes a venturi tube, a unloading pipe and a storage pipe, the storage pipe and the unloading pipe are fixedly connected, and the outlet of the unloading pipe is fixedly connected to the throat of the venturi tube at an angle.

2. The anti-blocking feeding device according to claim 1, characterized in that: A platform is provided on the top of the material storage tube, and a through hole corresponding to the diameter of the material storage tube is provided on the platform. A stepping motor is provided on the platform, and a baffle is provided to block the through hole.

3. The anti-blocking feeding device according to claim 1, characterized in that: A receiving groove for accommodating a baffle is arranged in the platform, a limiting plate is arranged at one end of the baffle, the limiting plate is connected to the output end of the stepper motor, the baffle is slidably arranged in the receiving groove and blocks the through hole, and the baffle is blocked on the notch of the receiving groove.

4. The anti-blocking feeding device according to claim 1, characterized in that: The stepper motor is horizontally arranged on the platform, one side of the stepper motor is connected to one side of the platform, and the other side of the stepper motor is connected to the limit plate.

5. The anti-blocking feeding device according to claim 1, characterized in that: The outlet at the bottom of the hopper, the inlet at the top of the storage pipe and the platform through hole have corresponding diameters, and the outlet at the bottom of the hopper, the inlet at the top of the storage pipe and the platform through hole are on the same straight line.

6. The anti-blocking feeding device according to claim 1, characterized in that: The diameter of the place where the feeding pipe is connected to the Venturi pipe is smaller than the diameters on both sides of the Venturi pipe.

7. The anti-blocking feeding device according to claim 1, characterized in that The lower end of the feed pipe is inclined downward toward the discharge port of the venturi tube.

8. The anti-blocking feeding device according to claim 1, characterized in that: The feed pipe comprises an upper part and a lower part, wherein the upper part and the lower part are arranged obliquely, and the axis of the upper part of the feed pipe is arranged perpendicularly to the axis of the venturi tube.

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